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Orbital Eccentricity Calculator Online

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The Orbital Eccentricity Calculator is a valuable tool used in celestial mechanics to determine the eccentricity of an orbit. Eccentricity refers to the degree of deviation of an orbit from a perfect circle. This calculator assists in understanding the shape of orbits, whether they are elliptical, circular, or highly eccentric.

Formula of Orbital Eccentricity Calculator

The formula used in the Orbital Eccentricity Calculator is:

e = (a - b) / a

Where:

  • e is the orbital eccentricity,
  • a is the length of the semi-major axis,
  • b is the length of the semi-minor axis.

General Terms Table

TermDescription
Orbital EccentricityMeasure of how elongated an orbit is
Semi-Major Axis (a)Half of the longest diameter of an ellipse
Semi-Minor Axis (b)Half of the shortest diameter of an ellipse
Elliptical OrbitOval-shaped path followed by a celestial body around another
Circular OrbitOrbit with constant distance from the center point
EccentricityDegree of deviation of an orbit from a perfect circle

Example of Orbital Eccentricity Calculator

Suppose we have an orbit with a semi-major axis (a) of 10 AU (Astronomical Units) and a semi-minor axis (b) of 8 AU. Let's calculate the eccentricity using the Orbital Eccentricity Calculator:

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e = (10 - 8) / 10 e = 0.2

Therefore, the eccentricity of this orbit is 0.2.

Most Common FAQs

What is Orbital Eccentricity?

Orbital eccentricity measures the degree of elongation or deviation of an orbit from a perfect circle. It is represented by the letter 'e' and ranges from 0 (circular orbit) to 1 (highly eccentric orbit).

How Does Orbital Eccentricity Impact Orbits?

Orbital eccentricity affects the shape and characteristics of orbits. A higher eccentricity indicates a more elongated orbit, while a lower eccentricity signifies a more circular orbit. Eccentricity influences factors such as orbital speed, orbital period, and gravitational interactions between celestial bodies.

Why is Understanding Orbital Eccentricity Important?

Understanding orbital eccentricity is crucial in various fields such as astronomy, astrophysics, and aerospace engineering. It helps scientists and engineers predict the behavior of celestial objects, plan space missions, and study phenomena like comets, asteroids, and planetary orbits.

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